.bottom ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 80px;
    background-color: bisque;
    align-items: center;
}
.bottom ul li {
    width: 20%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.bottom ul li img {
    width: 80%;
    border-radius: 50%;
}
.highlight {
    color: red;
    font-weight: 800;
}